Sparking igniter for explosive-engines.



N0. 813,081l PATENTED FEB..20, 1906. G. GORMAGK,"JB. & F. G. Z'UMDAHL. SPARKING IGNITER FOR EXPLOSIVEENGINES.

APPLICATION FILED PEB.5,1904.

" 10 after the point 9 has come in contact'with UNITED STATES PATENT OFFICE.

. 'SPARKING IGNITER FOR EXPLOSIVE-ENGINE S.

Specification of Letters Patent.

- Patented Feb. 20, 1906.

Application filed February a, 1904.. Serial No. 192,105.

I (all whom it may 001mm; I

Be it known that we, GEORGE .C RMACK, J r., and FREDERICK C. ZUMDAHL, citizens of the United States, residing at Rockford, in the county of Winnebago and State of Illinois, have invented certain new and useful Improvements in Sparking Igniters for Explosive-Engines, of which the following is a specification.

The object of this invention is to construct the supports for the points so that the points may be movedwi'th respect to eachother while in contact for the purpose of cleaning them. p

The further object of this invention is to provide means whereby a late ignition may be hadin starting the engine and changed to an earlier ignitionwhen the engine is under 1 h the accompanying drawings, Figure 1 is a face elevation of an engine-head with our attachments in place thereon. Fig. 2 is a plan view of thehead end of an engine with our improvements .in place. Fig. 3 is a side elevation of the igniter points and supports. Fig. 4 is an inner face representation of the ignite'r points and supports.

To the engine-head 1 is secured a plate 2, supporting the igniter-points. The support 3 is insulated from the plate 2 and has a point 4 extending from its inner end. A bracket 5 is supported by the plate 2 and has an overhanging end 6, provided with a central opening. A s indle 7 is located in the central opening 0 the bracket 5; also in an opening through the plate 2. The end 8 of this spindle is bent at right angles to the spindle and supports a oint 9.

The anvi -arm 10 is pinned to the spindle 7,

arm 10 and hammer-arm 11 together against the stop 16. The spring 13 allows the hammer-arm 111130 separate from the anvil-arm the oint 4.

T e spindle 7 has a head 17, and a spring 18 surrounds the spindlebetween the head and bracket. This spring 18 holds the point 9,

carried by the arm 8, in alinement with'the point 4, carried by the arm 3, so that the points may be brought together for the purpose of producing a spark. This spring also allows the spindle to be moved inward, .so

that the point 9, carried thereby, maybe moved inward from the point 4 or snapped by the point for the purpose of cleaning both points, The points are held in contact at the time the spindle is pushed in, so that a rubbing action is had between the points.

A shaft 19 has a crank-head 20 secured to it, and a stud 21 extends from the crankhead. Upon the stud is mounted a collar 22,.

having a transverse opening, within which is located a bar 23 and which is held thereby by v 'to receive the edge of the disk 25. When the notch 33 of the latch 27 is in engagement with the disk 25," the collar 22 will be held from lengthwiselmoveinent, at the same time allow- The end of the stud ing the stud to turn within it. By moving the latch 27 so that the notch 32 will engage the disk the-collar 22 will be carried with it, which Will move the bar 23 into the position shown in dotted lines.

To the head of the'engine is secured a bar 34, from which eirtends a rod 35. end of the bar 23 is provided with aside projection 36,extending beyond the end of the bar. The bar 23 rests upon the rod 35 about midway of its length. As the shaft '19 rotates in the direction indicated by the arrow the free end of the bar 23 will. pass under the free end of the hammer-arm 11 and will engage said arm and raise it against the action of the sprin s 13 and 15, thereby moving the point 9 of t e arm 8. into engagement with the point 4 of the support 3, and finally allowing the hammer-arm 11 to snap ofifthe end of the bar 23, thereby producing a spark atthe points.

It is better to start the engine with a late ignition. This we accomplish by moving the bar 23 into the position shpwnin dotted lines,

The free 11, and when the engine is under way the bar which will bring the extension 36 under the longer in contact with the said hammer-arm is moved into its solid-line position, which will give an earlier ignition.

We claim as our invention 7 .prising two points, one being movable, an arm 1. An igniter for gas'olene-engines, comprising two points, one'being movable, an arm having a/ connection with the movable point, and an operatin -bar having one end provided with a notch lorming two sections, said barbeing movable transverse to its length to bring either section of the end under the arm, in order that the time of ignition may be changed.

2. An igniter for gasolene-engines, com- I prising two points, one being movable, an arm 5 having aconnection with the movable point, a rotary crank-pin, a collar supported by the l crank-pin and havin a movement in the lengthwise direction 0 the crank-pin, means for holding the collar in its adjusted positions 3 and an operating-bar supported by the collar having a notch in one end capable of engage ing the arm,'in order that the time of ignition ,may be changed.

3. An 'igniter for gasolene-engines, comhaving a connection with the movable point, a rotating crank-pin, a collarsupported by the pin and having amovement in the lengthwise direction of the crank-pin, a disk suported by the crank-pin, a spring-actuated atch provided with a series of notches capable of receiving the edge of the disk and a bar supported bya collar having a notch in one end capable of engagement with the arm.

GEORGE oom iAo-KJR. FREDERICK o. ZUA'IDAHL.

I Witnesses A. O. BEHEI i, E. BEI-IEL. 

